A town of Oswego man was flown to University Hospital after being thrown from his all-terrain vehicle Tuesday night, state police said.

John F. Slattery, 61, of Lakeshore Road, was going north on county Route 89 in the town when he lost control on a curve and drove into a five-foot-deep ditch at 9:27 p.m., said Trooper Alex Kurilovitch.

Slattery, who was not wearing a helmet, was being treated for possible head injuries, said Trooper Shaun Smith. He was conscious and talking at the scene, troopers said.